After 2 days of surgery, the IL-6 (P < 0.0001) and WBC (P = 0.0254) levels of the Fe3O4/CNT/Gent + MV + MF group were significantly lower than that the Ctrl group, indicating that the bacterial infection was restrained in the Fe3O4/CNT/Gent + MV + MF group due to the dual-targeting effect of the precise MRSA-capturing and the magnetic field. This evidence concerns the gene IL6 and bacterial infectious disease.